Commissioning and Maintenance
P12x/EN CM/A96
MiCOM P120/P121/P122/P123
Page 9/18
4. SETTING
CHECK
The setting checks ensure that all of the application-specific relay setting for the particular
installation have been correctly applied to the relay.
Transfer the setting file to the relay using a laptop PC running the appropriate software via
the RS232 front port (all MiCOM P12x models) or the RS485 rear port (all MiCOM models).
This method is preferred transfer function settings because it is much faster and there is less
margin for error.
If the setting software is not used then enter manually via the relay front panel interface.
The commissioning is following the points below:
•
Consignation of the settings
•
Validation of the measurements
•
Validation of the thresholds and associated timers.
4.1 Settings
Carry forward the settings on the commissioning test sheets.
4.2 Measurements
The
MiCOM P120, P121, P122
and
P123
relays measure phase and earth currents (P120
only one phase or earth) as a True RMS value up to the 10
th
harmonics. The value(s)
indicated take account of the phase and/or earth CT ratio.
WARNING:
MiCOM P120, P121, P122 AND P123 RELAYS HAVE 1 AND 5 AMP
CURRENT INPUTS.
CHECK THAT THE INJECTED CURRENT IS COMPATIBLE WITH THE
SELECTED RANGE.
4.2.1 MiCOM
P120
−
Note the select CT ratio.
−
Energise the
MiCOM P120
relay.
−
Apply current to input terminals 55-56 or 47-48 and verify the value on the LCD
display.
−
Carry forward the results to the Commissioning test sheets (Applied value and relay
value displayed)
4.2.2
MiCOM P121, P122 and P123
−
Note the select phase and earth CTs ratio.
−
Energise the
MiCOM P121, P122
or
P123
relay.
−
Apply current to input (as per wiring diagram) and verify the values on the LCD
display.
−
Carry forward the results to the Commissioning test sheets (Applied values and relay
values displayed).
Содержание MiCom P120
Страница 1: ...MiCOM P120 P121 P122 P123 Overcurrent Relays Version 11 Technical Guide P12X EN T A96...
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Страница 4: ...P12x EN T A96 Technical Guide Contents Page 2 2 MiCOM P120 P121 P122 P123 BLANK PAGE...
Страница 13: ...Introduction P12x EN IT A96 MiCOM P120 P121 P122 P123 INTRODUCTION...
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Страница 26: ...P12x EN IN A96 Handling Installation and Case Dimensions Page 2 10 MiCOM P120 P121 P122 P123 BLANK PAGE...
Страница 35: ...User Guide P12x EN FT A96 MiCOM P120 P121 P122 P123 USER GUIDE...
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Страница 109: ...Menu Content Tables P12x EN HI A96 MiCOM P120 P121 P122 P123 MENU CONTENT TABLES...
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Страница 221: ...Application Guide P12x EN AP A96 MiCOM P120 P121 P122 P123 APPLICATION GUIDE...
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Страница 305: ...Communications P12x EN CT A96 MiCOM P120 P121 P122 P123 MODBUS DATABASE MiCOM P120 P121 P122 P123 VERSION V11 A...
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Страница 515: ...Communications P12x EN CT A96 MiCOM P120 P121 P122 P123 IEC 60870 5 103 MiCOM P120 P121 P122 P123 VERSION V11 A...
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Страница 537: ...Communications P12x EN CT A96 MiCOM P120 P121 P122 P123 DNP 3 0 DATABASE MiCOM P120 P121 P122 P123 VERSION V11 A...
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Страница 553: ...Commissioning and Maintenance P12x EN CM A96 MiCOM P120 P121 P122 P123 COMMISSIONING AND MAINTENANCE GUIDE...
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Страница 573: ...Connection Diagrams P12x EN CO A96 MiCOM P120 P121 P122 P123 CONNECTION DIAGRAMS...
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Страница 579: ...Commissioning Test Record Sheets P12x EN RS A96 MiCOM P120 P121 P122 P123 COMMISSIONING TEST RECORD SHEETS...
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Страница 644: ...P12x EN VC A96 Hardware Software Version History and Compatibility Page 2 26 MiCOM P120 P121 P122 P123 BLANK PAGE...
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